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	hartrees
Energy at 0K	-13.638048
Energy at 298.15K	-13.641209
HF Energy	-13.638048
Nuclear repulsion energy	19.181057

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	3195	3195	0.00
2	A_g	1704	1704	0.00
3	A_g	1380	1380	0.00
4	A_u	1044	1044	0.00
5	B_1u	3168	3168	25.87
6	B_1u	1469	1469	14.87
7	B_2g	976	976	0.00
8	B_2u	3299	3299	74.09
9	B_2u	823	823	4.26
10	B_3g	3252	3252	0.00
11	B_3g	1201	1201	0.00
12	B_3u	987	987	192.37

Atom	y (Å)	z (Å)
C1	0.000	0.684
C2	0.000	-0.684
H3	0.934	1.256
H4	-0.934	1.256
H5	-0.934	-1.256
H6	0.934	-1.256

	C1	C2	H3	H4	H5	H6
C1		1.3680	1.0949	1.0949	2.1529	2.1529
C2	1.3680		2.1529	2.1529	1.0949	1.0949
H3	1.0949	2.1529		1.8673	3.1300	2.5120
H4	1.0949	2.1529	1.8673		2.5120	3.1300
H5	2.1529	1.0949	3.1300	2.5120		1.8673
H6	2.1529	1.0949	2.5120	3.1300	1.8673

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H5	121.494	C1	C2	H6	121.494
C2	C1	H3	121.494	C2	C1	H4	121.494
H3	C1	H4	117.012	H5	C2	H6	117.012

All results from a given calculation for C₂H₄ (Ethylene)

using model chemistry: HSEh1PBE/CEP-31G

States and conformations

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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Number	Element	Mulliken
1	C	-0.362
2	C	-0.362
3	H	0.181
4	H	0.181
5	H	0.181
6	H	0.181

<r²>	21.719
(<r²>)^1/2	4.660

All results from a given calculation for C2H4 (Ethylene)

using model chemistry: HSEh1PBE/CEP-31G

States and conformations

All results from a given calculation for C₂H₄ (Ethylene)